<!DOCTYPE html>
<html lang="zh">
<head>
    <meta charset="UTF-8">
    <title>测试js回调函数2</title>
    <script src="../zujian/han/han.js"></script>
</head>
<body>

<script type="text/javascript">

   function a(param,callback){
       console.log("a")
       callback("美女");
       console.log("aa")
   }

 //   a
 //  b美女
 // aa
   a("a",function (param){
       console.log("b"+param)
   });




</script>
</body>
</html>